Lewis and Choi were in the last group on the course and had just teed off on the 18th when a thunderstorm rolled in and caused a 2½-hour delay.

Lewis was up a stroke when they left the course, but when they returned, Choi made a 10-foot birdie putt to pull even heading into Sunday.

The two golfers traded the lead throughout the day. Lewis bogeyed holes No. 1 and 3 to fall two strokes behind Choi. Lewis pulled even after reeling off three consecutive birdies – including a 25-foot putt on No. 8 that barely caught the edge of the hole.

Choi moved atop the leaderboard again with a birdie on the 14th, but she bogeyed the next hole after missing a long par putt to give the lead right back.

Lewis maintained the one-shot advantage going into the 18th. And then the rain came.

“It was very frustrating,” Lewis said. “It is what it is and luckily we got finished today. It’s going to be tight tomorrow and we are going to have to make some putts.”

EUROPEAN TOUR: In Centurion, South Africa, Darren Fichardt stormed into a four-way share of the lead with 8-under-par 64 in the third round of the Tshwane Open.

Almost two hours of play were lost in mid-afternoon when a thunderstorm forced players from the Els Club course at the Copperleaf Golf Estate.

When play resumed, Fichardt, who’s looking for a second consecutive Race to Dubai win, birdied his closing three holes in a round that was just one shot shy of the course record.

Fichardt, who lives 10 minutes from the course, moved to a 16-under total with Chilean Mark Tullo (67) and fellow South Africans Charl Coetzee (68) and Dawie Van Der Walt (67).

WEB.COM TOUR: In Bogota, Colombia, Patrick Cantlay shot 6-under 65 to grab a share of the lead at the Colombian Championship.

Cantlay is tied atop the leaderboard with Jim Renner, who had 66. Cantlay and Renner are at 18-under 200 at Country Club de Bogota.

North Augusta’s Scott Brown shot 67 in the third round and is seven shots back in a tie for 16th place.